新颖孤立的金属环组装而成的三维氢键超分子化合物的合成及晶体结构

A novel discrete dinuclear metaUacyclic copper（Ⅱ） complex, Cu2L2（H2O）2]·3H2O （1） has been firstly prepared where L is derived from the 1 ; 2 condensation of 2,2＇-bipyridyl-3,3＇-diformylhydrazide and acetone during the formation of the complex. Single-crystal X-ray diffraction analysis determines that the complex consists of dinuclear metallacyclic units Cu2L2（H2O）2] where two metal centers are linked together through two bis（chelating） bridge ligands L to form a bizarre cavity with size 0.9417 nm× 0.4999 nm× 0.6930 nm. Interestingly, the metal coordination also creates hydrogen bond sites that further aggregate these metallacycles into a 3D supramolecular structure with 2D perpendicular hydrophilic tunnels in crystal.

Synthesis of a Novel Discrete Metallacycle Complex Self-assembled into a 3D Hydrogen-binding Supramolecular Structure

A novel discrete dinuclear metallacyclic copper(II) complex, Cu₂L₂(H₂O)₂]·3H₂O ( 1 ) has been firstly prepared where L is derived from the 1:2 condensation of 2,2′‐bipyridyl‐3,3′‐diformylhydrazide and acetone during the formation of the complex. Single‐crystal X‐ray diffraction analysis determines that the complex consists of dinuclear metallacyclic units Cu₂L₂(H₂O)₂] where two metal centers are linked together through two bis(chelating) bridge ligands L to form a bizarre cavity with size 0.9417 nm×0.4999 nm×0.6930 nm. Interestingly, the metal coordination also creates hydrogen bond sites that further aggregate these metallacycles into a 3D supramolecular structure with 2D perpendicular hydrophilic tunnels in crystal.